package cn.edu.just.firstjavaapp.l20;

import javax.swing.*;

public class GUIDemo01 {
    public static void main(String[] args) {
        JFrame frame = new JFrame();
        frame.setSize(300,200);
        frame.setLocation(300,300);

        frame.setTitle("我的应用程序");
        frame.setVisible(true);
    }

}
